
mineral
Quartz Pebble (likely Rose Quartz or Iron-stained Quartz)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness 7 on Mohs scale, pale pink to buff color, vitreous to waxy luster, trigonal crystal system with no cleavage.
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Physical properties
Hardness 7 on Mohs scale, pale pink to buff color, vitreous to waxy luster, trigonal crystal system with no cleavage.
Formation & geological history
Formed in pegmatites or hydrothermal veins, later rounded and smoothed by fluvial or glacial weathering.
Uses & applications
Commonly used in lapidary work, decorative landscaping, tumbling, and educational rock collections.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust. Trace amounts of titanium, iron, or manganese often cause pink hues.
Field identification & locations
Identify by its hardness (scratches glass and steel) and lack of cleavage planes; commonly found in riverbeds and gravel bars.